Paragraphs consist of a topic sentence, two to three points (supporting facts or opinions), and perhaps a minor point or two. The topic sentence contains the main idea of the paragraph. The other sentence support the topic sentence. Example : The president recently spoke about the shortage of energy. He urged us to conserve energy. We do this by turning off lights we aren't using. The topic sentence is the sentence that says the President spoke about the shortage of energy. Directions : Read the following groups of sentences. Underline the sentence in each group that states the main idea, or most basic fact. Group 1: a. First, they take us places we need to go. b. Automobiles are important for two reasons. c. Second, we use them for pleasure. Group 2: a. It is also well known for its koala bears. b. It is famous for Kangaroos. c. Australia has many interesing animals. Group 3: a. Also, it comes in a variety of flavors. b. There are two things I like about ice...